436
FZUS51 KBOX 031104
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
704 AM EDT THU SEP 3 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-040000-
704 AM EDT THU SEP 3 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
A WARM FRONT SLOWLY LIFTS NORTH TONIGHT INTO THU. LOW PRES AND ITS
ASSOCIATED COLD FRONT WILL CROSS THE WATERS THU AFTERNOON INTO THU
NIGHT. THIS LOW PRES SYSTEM WILL INTENSIFY AS IT LIFTS NE TOWARDS
THE CANADIAN MARITIMES FRI AND SHIFT FARTHER E BY THE HOLIDAY
WEEKEND.
ANZ250-040000-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
704 AM EDT THU SEP 3 2026
TODAY
S WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT THIS
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE
3 FT AT 4 SECONDS AND SE 2 FT AT 9 SECONDS. PATCHY FOG. A CHANCE
OF TSTMS. SHOWERS THIS MORNING, THEN A CHANCE OF SHOWERS THIS
AFTERNOON. VSBY 1 TO 3 NM.
TONIGHT
W WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S
3 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS. PATCHY FOG. VSBY 1 TO
3 NM.
FRI
NW WINDS AROUND 5 KT, BECOMING SW AROUND 5 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS AND
SE 2 FT AT 8 SECONDS. PATCHY FOG IN THE MORNING WITH VSBY 1 TO
3 NM.
FRI NIGHT
SW WINDS AROUND 5 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT AT 8 SECONDS AND S 2 FT AT
7 SECONDS.
SAT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: E 3 FT AT 7 SECONDS AND NW 2 FT AT 3 SECONDS.
SAT NIGHT
N WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: N 5 FT
AT 7 SECONDS AND E 2 FT AT 8 SECONDS.
SUN AND SUN NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
BECOMING NW 5 TO 10 KT. SEAS 3 TO 5 FT.
MON AND MON NIGHT
NW WINDS 5 TO 10 KT, BECOMING SW. SEAS 2 TO
4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ251-040000-
MASSACHUSETTS BAY AND IPSWICH BAY-
704 AM EDT THU SEP 3 2026
TODAY
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SE 3 FT AT 4 SECONDS AND E 1 FOOT AT
10 SECONDS. PATCHY FOG. A CHANCE OF TSTMS. SHOWERS THIS MORNING,
THEN A CHANCE OF SHOWERS THIS AFTERNOON. VSBY 1 TO 3 NM.
TONIGHT
W WINDS AROUND 5 KT. SEAS AROUND 2 FT. WAVE DETAIL: E
2 FT AT 6 SECONDS AND S 1 FOOT AT 3 SECONDS. PATCHY FOG. VSBY
1 TO 3 NM.
FRI
NW WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 8 SECONDS AND SW 1 FOOT AT
4 SECONDS.
FRI NIGHT
W WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 8 SECONDS.
SAT AND SAT NIGHT
N WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: NW 3 FT AT 7 SECONDS AND E 3 FT AT 8 SECONDS.
SUN THROUGH MON
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: NE 4 FT AT 8 SECONDS AND NW 3 FT AT
6 SECONDS.
MON NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ231-040000-
CAPE COD BAY-
704 AM EDT THU SEP 3 2026
TODAY
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SE 2 FT AT 3 SECONDS AND SE 1 FOOT AT
10 SECONDS. PATCHY FOG. A CHANCE OF TSTMS. SHOWERS THIS MORNING,
THEN A CHANCE OF SHOWERS THIS AFTERNOON. VSBY 1 TO 3 NM THIS
MORNING.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. SEAS
AROUND 2 FT IN THE EVENING, THEN 1 FOOT OR LESS. WAVE DETAIL: SW
1 FOOT AT 3 SECONDS AND E 1 FOOT AT 4 SECONDS, BECOMING SW 1 FOOT
AT 2 SECONDS AND E 1 FOOT AT 5 SECONDS. PATCHY FOG. VSBY 1 NM OR
LESS.
FRI
N WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE DETAIL: SW
1 FOOT AT 2 SECONDS AND E 1 FOOT AT 6 SECONDS. PATCHY FOG IN THE
MORNING.
FRI NIGHT
SW WINDS AROUND 5 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT. WAVE
DETAIL: SW 1 FOOT AT 4 SECONDS AND E 1 FOOT AT 7 SECONDS,
BECOMING NW 1 FOOT AT 2 SECONDS AND E 1 FOOT AT 7 SECONDS.
SAT AND SAT NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS AND E 3 FT AT
8 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 5 SECONDS AND E
3 FT AT 9 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ254-040000-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
704 AM EDT THU SEP 3 2026
TODAY
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE 3 FT AT 9 SECONDS.
PATCHY FOG. A CHANCE OF TSTMS. SHOWERS LIKELY THIS MORNING, THEN
A CHANCE OF SHOWERS THIS AFTERNOON. VSBY 1 TO 3 NM.
TONIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND E 2 FT AT 6 SECONDS. PATCHY FOG. A CHANCE
OF SHOWERS IN THE EVENING. VSBY 1 NM OR LESS.
FRI
NW WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT
AT 7 SECONDS AND SW 1 FOOT AT 4 SECONDS. PATCHY FOG IN THE
MORNING WITH VSBY 1 TO 3 NM.
FRI NIGHT
SW WINDS AROUND 5 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: E 2 FT AT 7 SECONDS AND SE 2 FT AT
8 SECONDS.
SAT
N WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: N 3 FT
AT 5 SECONDS AND SE 2 FT AT 8 SECONDS.
SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS
4 TO 6 FT. WAVE DETAIL: E 5 FT AT 7 SECONDS AND SW 1 FOOT AT
6 SECONDS.
SUN AND SUN NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
BECOMING NW 10 TO 15 KT. SEAS 4 TO 6 FT.
MON
NW WINDS 5 TO 10 KT. SEAS 3 TO 5 FT.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ255-040000-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
704 AM EDT THU SEP 3 2026
TODAY
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE 3 FT AT 9 SECONDS.
A SLIGHT CHANCE OF TSTMS. SHOWERS LIKELY THIS MORNING, THEN A
CHANCE OF SHOWERS THIS AFTERNOON. PATCHY FOG THIS MORNING.
TONIGHT
SW WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND E
2 FT AT 6 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
FRI
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 5 SECONDS AND SE 2 FT AT 7 SECONDS. PATCHY FOG IN THE MORNING
WITH VSBY 1 NM OR LESS.
FRI NIGHT
W WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND E
2 FT AT 7 SECONDS.
SAT AND SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS AND SE 2 FT AT
8 SECONDS.
SUN AND SUN NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT,
BECOMING NW 10 TO 15 KT. SEAS 3 TO 5 FT. WAVE DETAIL: NE 4 FT AT
5 SECONDS AND E 4 FT AT 8 SECONDS.
MON AND MON NIGHT
NW WINDS 5 TO 10 KT, BECOMING W 10 TO 15 KT.
SEAS 2 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ256-040000-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
704 AM EDT THU SEP 3 2026
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 3 FT AT 9 SECONDS.
A SLIGHT CHANCE OF TSTMS. A CHANCE OF SHOWERS THIS MORNING, THEN
A SLIGHT CHANCE OF SHOWERS THIS AFTERNOON. PATCHY FOG THIS
MORNING.
TONIGHT
SW WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: SW 3 FT AT 4 SECONDS AND
SE 3 FT AT 9 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
FRI
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 5 SECONDS AND SE 2 FT AT 7 SECONDS. PATCHY FOG IN THE MORNING
WITH VSBY 1 NM OR LESS.
FRI NIGHT
W WINDS AROUND 10 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND E 2 FT AT
7 SECONDS.
SAT AND SAT NIGHT
NE WINDS 15 TO 20 KT. SEAS 2 TO 4 FT. WAVE
DETAIL: E 4 FT AT 6 SECONDS AND NW 3 FT AT 4 SECONDS.
SUN AND SUN NIGHT
N WINDS 15 TO 20 KT, BECOMING NW 10 TO
15 KT. SEAS 2 TO 4 FT. WAVE DETAIL: NE 4 FT AT 5 SECONDS AND E
3 FT AT 8 SECONDS.
MON AND MON NIGHT
NW WINDS 5 TO 10 KT, BECOMING W 10 TO 15 KT.
SEAS AROUND 2 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ232-040000-
NANTUCKET SOUND-
704 AM EDT THU SEP 3 2026
TODAY
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
3 FT. WAVE DETAIL: SE 2 FT AT 4 SECONDS AND SE 1 FOOT AT
9 SECONDS. PATCHY FOG. A CHANCE OF TSTMS. SHOWERS THIS MORNING,
THEN A CHANCE OF SHOWERS THIS AFTERNOON. VSBY 1 TO 3 NM THIS
MORNING.
TONIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE
DETAIL: W 2 FT AT 4 SECONDS AND E 1 FOOT AT 5 SECONDS. PATCHY
FOG. VSBY 1 NM OR LESS.
FRI
NW WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND SE 1 FOOT AT
7 SECONDS. PATCHY FOG IN THE MORNING WITH VSBY 1 TO 3 NM.
FRI NIGHT
W WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT 5 SECONDS
AND SE 1 FOOT AT 7 SECONDS.
SAT AND SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: N 3 FT AT 4 SECONDS AND SE 1 FOOT AT
8 SECONDS.
SUN THROUGH MON NIGHT
W WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 4 SECONDS AND W
2 FT AT 3 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ233-040000-
VINEYARD SOUND-
704 AM EDT THU SEP 3 2026
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 1 FOOT AT
9 SECONDS. A CHANCE OF TSTMS. SHOWERS LIKELY THIS MORNING, THEN A
CHANCE OF SHOWERS THIS AFTERNOON. PATCHY FOG THIS MORNING.
TONIGHT
SW WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND
SE 1 FOOT AT 5 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
FRI
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: W
1 FOOT AT 5 SECONDS AND SE 1 FOOT AT 7 SECONDS. PATCHY FOG IN THE
MORNING WITH VSBY 1 TO 3 NM.
FRI NIGHT
W WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 5 SECONDS AND E 1 FOOT AT
7 SECONDS.
SAT AND SAT NIGHT
N WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: N 2 FT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 15 TO 20 KT. SEAS 2 TO 3 FT.
WAVE DETAIL: NE 2 FT AT 3 SECONDS AND SW 2 FT AT 3 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ234-040000-
BUZZARDS BAY-
704 AM EDT THU SEP 3 2026
TODAY
SW WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 2 TO
4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 1 FOOT AT
9 SECONDS. A CHANCE OF TSTMS. SHOWERS LIKELY THIS MORNING, THEN A
CHANCE OF SHOWERS THIS AFTERNOON. PATCHY FOG THIS MORNING WITH
VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 10 TO 15 KT, BECOMING W AROUND 5 KT AFTER
MIDNIGHT. SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT AT 5 SECONDS AND
SE 1 FOOT AT 9 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
FRI
NW WINDS AROUND 5 KT, BECOMING SW IN THE AFTERNOON. SEAS
1 FOOT OR LESS. WAVE DETAIL: SW 1 FOOT AT 4 SECONDS AND SE 1 FOOT
AT 7 SECONDS. PATCHY FOG IN THE MORNING WITH VSBY 1 TO 3 NM.
FRI NIGHT
W WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT. SEAS
1 FOOT OR LESS, THEN AROUND 2 FT AFTER MIDNIGHT. WAVE DETAIL: SW
1 FOOT AT 5 SECONDS AND E 1 FOOT AT 7 SECONDS, BECOMING NW 1 FOOT
AT 5 SECONDS AND E 1 FOOT AT 7 SECONDS.
SAT AND SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 4 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND SE 1 FOOT AT
7 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS UP TO
25 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND W
1 FOOT AT 7 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ235-040000-
RHODE ISLAND SOUND-
704 AM EDT THU SEP 3 2026
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 3 FT AT 9 SECONDS.
A CHANCE OF SHOWERS. A SLIGHT CHANCE OF TSTMS THIS MORNING, THEN
A CHANCE OF TSTMS THIS AFTERNOON. PATCHY FOG THIS MORNING WITH
VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 10 TO 15 KT, BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND S
2 FT AT 6 SECONDS. PATCHY FOG. VSBY 1 NM OR LESS.
FRI
NW WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND SE 2 FT AT
8 SECONDS. PATCHY FOG IN THE MORNING WITH VSBY 1 NM OR LESS.
FRI NIGHT
W WINDS AROUND 10 KT, BECOMING NW AFTER MIDNIGHT.
SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND SE 2 FT
AT 8 SECONDS.
SAT AND SAT NIGHT
N WINDS 15 TO 20 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: N 3 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS.
SUN THROUGH MON NIGHT
W WINDS 15 TO 20 KT. SEAS 2 TO 3 FT.
WAVE DETAIL: NE 3 FT AT 4 SECONDS AND SW 2 FT AT 3 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ237-040000-
BLOCK ISLAND SOUND-
704 AM EDT THU SEP 3 2026
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 2 TO
3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE 3 FT AT 10 SECONDS.
A SLIGHT CHANCE OF TSTMS. A CHANCE OF SHOWERS THIS MORNING, THEN
A SLIGHT CHANCE OF SHOWERS THIS AFTERNOON. PATCHY FOG THIS
MORNING.
TONIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND SE 2 FT AT 6 SECONDS. PATCHY FOG. VSBY 1 TO
3 NM.
FRI
NW WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 2 FT AT
7 SECONDS.
FRI NIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SE 2 FT AT 8 SECONDS AND W 1 FOOT AT 4 SECONDS.
SAT AND SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: N 2 FT AT 4 SECONDS AND SE 2 FT AT
8 SECONDS.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 2 FT AT 4 SECONDS AND S
1 FOOT AT 7 SECONDS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ230-040000-
BOSTON HARBOR-
704 AM EDT THU SEP 3 2026
TODAY
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING SW
5 TO 10 KT THIS AFTERNOON. WAVES AROUND 2 FT. PATCHY FOG. A
CHANCE OF TSTMS. SHOWERS THIS MORNING, THEN A CHANCE OF SHOWERS
THIS AFTERNOON.
TONIGHT
W WINDS AROUND 5 KT. WAVES 1 FOOT OR LESS. PATCHY FOG.
A CHANCE OF SHOWERS IN THE EVENING. VSBY 1 TO 3 NM.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FOOT OR LESS.
FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
SAT AND SAT NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT.
SUN THROUGH MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. WAVES AROUND 2 FT.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ236-040000-
NARRAGANSETT BAY-
704 AM EDT THU SEP 3 2026
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. WAVES 2 TO
3 FT. SHOWERS LIKELY WITH A SLIGHT CHANCE OF TSTMS THIS MORNING,
THEN A CHANCE OF SHOWERS AND TSTMS THIS AFTERNOON. PATCHY FOG
THIS MORNING WITH VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 5 TO 10 KT, BECOMING W AFTER MIDNIGHT. WAVES
AROUND 2 FT. PATCHY FOG. VSBY 1 TO 3 NM.
FRI
NW WINDS 5 TO 10 KT. WAVES AROUND 2 FT. PATCHY FOG IN THE
MORNING WITH VSBY 1 TO 3 NM.
FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SAT AND SAT NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT.
SUN THROUGH MON NIGHT
W WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. WAVES AROUND 2 FT.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ280-040000-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
704 AM EDT THU SEP 3 2026
TODAY
S WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT. SEAS 3 TO
5 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS.
PATCHY FOG. SHOWERS WITH A CHANCE OF TSTMS THIS MORNING. A CHANCE
OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS THIS AFTERNOON. VSBY
1 TO 3 NM.
TONIGHT
W WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT, BECOMING NW
AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT AT 6 SECONDS
AND SE 2 FT AT 9 SECONDS. PATCHY FOG. A CHANCE OF SHOWERS IN THE
EVENING. VSBY 1 NM OR LESS, INCREASING TO 1 TO 3 NM AFTER
MIDNIGHT.
FRI
NW WINDS AROUND 5 KT. SEAS AROUND 3 FT. WAVE DETAIL: E
3 FT AT 7 SECONDS AND SE 3 FT AT 8 SECONDS. PATCHY FOG IN THE
MORNING WITH VSBY 1 TO 3 NM.
FRI NIGHT
W WINDS 5 TO 10 KT, BECOMING N 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 7 SECONDS.
SAT AND SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: NE 6 FT AT 7 SECONDS.
SUN AND SUN NIGHT
N WINDS 15 TO 20 KT, BECOMING NW 10 TO
15 KT. GUSTS UP TO 25 KT. SEAS 4 TO 6 FT. WAVE DETAIL: NE 6 FT AT
7 SECONDS AND E 5 FT AT 8 SECONDS.
MON AND MON NIGHT
NW WINDS 10 TO 15 KT, BECOMING SW. GUSTS UP
TO 20 KT. SEAS 2 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ281-040000-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
704 AM EDT THU SEP 3 2026
TODAY
SE WINDS 10 TO 15 KT, BECOMING S 15 TO 20 KT THIS
AFTERNOON. GUSTS UP TO 25 KT. SEAS 2 TO 4 FT. WAVE DETAIL: SE
3 FT AT 5 SECONDS AND SE 3 FT AT 9 SECONDS. PATCHY FOG. SHOWERS
LIKELY WITH A CHANCE OF TSTMS. VSBY 1 TO 3 NM.
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT, BECOMING
W 5 TO 10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: E 3 FT
AT 7 SECONDS AND SW 2 FT AT 4 SECONDS. PATCHY FOG. A CHANCE OF
SHOWERS AND TSTMS IN THE EVENING. VSBY 1 NM OR LESS.
FRI
NW WINDS AROUND 5 KT. SEAS AROUND 3 FT. WAVE DETAIL: E
3 FT AT 7 SECONDS AND SW 2 FT AT 5 SECONDS. PATCHY FOG IN THE
MORNING WITH VSBY 1 NM OR LESS.
FRI NIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 8 SECONDS AND SW 1 FOOT AT 5 SECONDS. PATCHY FOG IN THE
EVENING WITH VSBY 1 NM OR LESS.
SAT AND SAT NIGHT
N WINDS 15 TO 20 KT WITH GUSTS UP TO 30 KT.
SEAS 4 TO 6 FT. WAVE DETAIL: NE 6 FT AT 7 SECONDS AND SW 3 FT AT
7 SECONDS.
SUN AND SUN NIGHT
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO
15 KT. GUSTS UP TO 25 KT. SEAS 5 TO 7 FT. WAVE DETAIL: NE 7 FT AT
8 SECONDS AND SW 3 FT AT 7 SECONDS.
MON
NW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 4 TO
6 FT.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ282-040000-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
704 AM EDT THU SEP 3 2026
TODAY
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND S 2 FT AT 4 SECONDS.
A SLIGHT CHANCE OF TSTMS. SHOWERS LIKELY THIS MORNING, THEN A
CHANCE OF SHOWERS THIS AFTERNOON. PATCHY FOG THIS MORNING.
TONIGHT
W WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
3 FT AT 7 SECONDS AND SW 2 FT AT 4 SECONDS. PATCHY FOG. VSBY 1 NM
OR LESS.
FRI
NW WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND E 2 FT AT 7 SECONDS. PATCHY FOG IN THE
MORNING WITH VSBY 1 NM OR LESS.
FRI NIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 5 SECONDS AND E 2 FT AT 8 SECONDS.
SAT AND SAT NIGHT
N WINDS 15 TO 20 KT. SEAS 3 TO 5 FT. WAVE
DETAIL: NW 4 FT AT 5 SECONDS AND E 2 FT AT 8 SECONDS.
SUN THROUGH MON
N WINDS 15 TO 20 KT. SEAS 4 TO 6 FT. WAVE
DETAIL: NE 6 FT AT 8 SECONDS AND SW 2 FT AT 6 SECONDS.
MON NIGHT
W WINDS 5 TO 10 KT. SEAS 3 TO 4 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ283-040000-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
704 AM EDT THU SEP 3 2026
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 3 FT AT 9 SECONDS.
A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS. PATCHY FOG
THIS MORNING.
TONIGHT
W WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND SE 2 FT AT 6 SECONDS. PATCHY FOG. VSBY 1 TO
3 NM, DECREASING TO 1 NM OR LESS AFTER MIDNIGHT.
FRI
W WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL: SW 2 FT
AT 5 SECONDS AND E 2 FT AT 8 SECONDS. PATCHY FOG IN THE MORNING.
A CHANCE OF SHOWERS IN THE AFTERNOON. VSBY 1 NM OR LESS IN THE
MORNING.
FRI NIGHT
NW WINDS 10 TO 15 KT. SEAS AROUND 3 FT. WAVE DETAIL:
SW 2 FT AT 5 SECONDS AND E 2 FT AT 7 SECONDS.
SAT AND SAT NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: N 4 FT AT 5 SECONDS AND E 3 FT AT
8 SECONDS.
SUN AND SUN NIGHT
N WINDS 15 TO 20 KT, DIMINISHING TO 10 TO
15 KT. GUSTS UP TO 25 KT. SEAS 3 TO 5 FT. WAVE DETAIL: NE 5 FT AT
7 SECONDS AND SW 1 FOOT AT 6 SECONDS.
MON AND MON NIGHT
NW WINDS 5 TO 10 KT, BECOMING W 10 TO 15 KT.
SEAS 2 TO 3 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
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